Radiator



June 3, 1930. J. KARMA i151 w1,761,395

RADIATOR Filed May 28, 1923 3 Sheets-Sheet l 9&1 abtomdm /J M A June 3;1930.

J. KARMAZIN RADIATOR Filed May 28, 1923 5 Sheets-Sheet 2 June 3, 1930.J, KA MAZ N 1,761,395

RADIATOR Filed May 28, 1923 3 Sheets-Sheet 3 V@X@ 6 f 7 .951? WWW IPatented June 3, 1930 sures JOHN KARMAZIN, OF EAST ELMHUBST, NEW YORKRADIATOR Application filed May 28, 1923. Serial No. 641,850.

This invention relates to radiators suitable for use in connection withinternal combustion engines using cooling water.

Radiators for water cooled internal combustion engines require thepassage of water in one direction through one set of passages and thepassage of air through other passages in another direction. For highefficiency it is desirable to have low resistance to air-flow l0 andalso to flow of water, and yet to divide up the water-flow and air-flowinto sufiieiently small streams so that the water may be cooled rapidly,the heat being conducted to the air through thin metallic walls. It isalso of great importance that-every part of the radiator be active indissipating this heat.

There are two principal types of radiators, one the honeycomb type ofradiator, made up of corrugated sheet metal strips suitably spaced.apart to form corrugated conduits for the water, the other beingthefin-and-t ube type made up of a number of spaced apart flat sheets ofmetal through which are passed a number of tubes to conduct the coolingwater. The assemblying of this form of radiator has contributedconsiderably to its cost. The present invention relates to a radiatorwhich, insofar as appearance and operation are concerned, resembles Y.the fin-an'd-tube type, but which is made up in an entirely differentmanner, by which the expense of assembly is very materially reduced.An'object of the present invention is to provide an improved radiatorwherein parts may be readily brought together and assembled into acooling seetionand thus into a com- M necessary in making the conduitswatertight;

Another object of the invention is to provide a radiating section inwhich water conduits are integral with their supports wherebv there is arapid transfer of heat energy from the tube to the surrounding air.

vide a radiator wherein a damaged part of Another object of theinvention is to prothe cooling section may be readily removed an'd'newparts substituted.

Other objects of the invention will be apparent as the invention isdescribed in detail below. a

In the accompanying drawings there is shown, for the purpose ofillustrating the invention, a completed radiator made in accordance withthe present invention, together with several modified forms of radiatorelements which may be used in accordance with the present invention. Inthe accompanying drawings Fig. 1 is a front view of a complete radiatoraccording to my invention;

Fig. 2 is a horizontal section taken on the line 22 of Fig. 1;

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 1;

Fig. 4 shows a method of fastening the sections together;

Fig. 5 is a plan view of a portion of one form of radiator element; Fig.6 1s a plan view of a modified form of the element;

' Fig. 7 .shows a detail of a slightly further modified form of element;

Fig. 8 is a section showing the assembly of a number of elements andtaken on the line Figs. 9and 9A illustrate further modifications of theelement.

Figs. 6, 7 and 8 illustrate a completed strip or element of material. Itwill be seen that the strip 60 has a number of regularly'spaceddepending tubes 61, and holes 62 intermediate the-tubes 61. The severedmaterial has been'bent down to provide fins or deflectors 63 or 63 (Fig.7). The tubes 27 are given a slig11t taper, and, if desired, the punchand die mechanism may be such as to give the tubes an intermediateshoulder such as shown at 64'and a smaller inwardly directed ledge 65 atthe bottom end of the tube. It is preferable to locate the shoulder-64half-way between the ledge 65 and the upper surface 66,

r for then the tubes reinforce one another.

Fig. 8 shows the way of assembling elements such as above described intoa cooling section. The str p of metal with the tubes and with or withoutthe additional unchings is cut into pieces ofthe proper ength,

them-aterial is deformed to provide the finsor deflectors, thesedeflectors will operate to stir the air passing through the coolingsection so as to bring it intolintimate contact with the outside of thetubes.

The structures heretofore disclosed have contemplated the use of roundtubes, but the configuration of the tube is not essential, as shapesother than round may be used. Two

' such shapes are shown in Figs. 9 and 9 in which the tubes 68 and 69are oblongin shape. They may be made up in a manner similar to themethod described with respect to the round tubes.

The cooling section which has been made up in the manner above describedis now ready to be placed in a frame to make up a finished radiator. Oneform of such a radiator will now be described. A strip of metal 170,suit-ably punched, is laced between the upper two of the neste elements,

and to this strip may be fastened'the up er tank 171. A lower tank 172,with suita ly located apertures in the upper part thereof, is passedover theprojecting tubes 174 of the bottom section. A very convenientmethod.

of fastening these parts together is shown in Fig. 4, according to whichrods 175 are passed down through two or more of the 40 tubes 67 andsoldered inplace as shown at 177. The soldering of these rods at bothtop and bottom to the upper and lower elements of the cooling sectionpermanently fasten together all parts of the cooling sectlon. In orderto protect the pro ecting ends 178 of the elements of the cooling secton, there may be provided, if desired, a strip 179, to which the ends178 may be soldered. A sultable frame 180.may be provided, to give theradiator a finished appearance; and to make the structure more rigid,brackets 181 and 182 are used, reaching from the tanks to reinforce thecooling section. 7

Sometimes it is desirable to remove excess metal; and then one can punchholes between the tubes 27 as shown at 27 in Figure 5.

Radiators made up in accordance with the smaller number of tubes or with.a much smaller radiator than is possible in the ordinary fin-and-tubetype 0 radiator, in which the metallic parts cannot be brought into'good thermal contact. As the use of solder is not, necessary to make thedevice watertight, it is of course obvious that the troubles incident tosoldering have been eliminated, and the elimination of these solderedjoints makes it possible to readily take the radiator apart for purposesof repairs, replace the worn elements with new ones, and restore it toservice.

ments by soldering to the tubes thereon.

2. A cooling'section for radiators comprising a plurality ofsuperimposed elements each having a pluralit of rows of integraltransverse tubes provi ed with intermediate shoulders, the tubes .of oneelement being nested into the tubes of an adjacent element, theshoulders spacing the elements, and rods passed through certain of thetubes and fastened to the outside elements by soldering to the tubestli'ereon.

3. A cooling section for radiators comprismg a plurality of superimposedelements each having a plurality of integral transverse tubes, the tubesof one element being nested 1nto the tubes of an adjacent element, androds passed through certain of the tubes, and fastened to the outsideelements by soldering to the tubes thereon, combined with water tanksopening into the tubes.

4. A cooling section for radiators comprising a plurality ofsuperimposed elements each having a plurality of rows of integraltransyerse tubular projections, the tubular 'proections of one elementbeing nested into the tubular projections of an adjacent element presentinvention have been found to be a distinct advance in the art, onaccount of the 60 use of the same piece of metal to act as a conduit forthe water and as one side of an air conduit or channel. One is able touse the metal at highest eificiency in transferring heat from the waterto the air. One is able 65 to cool an automobile engine with a much

